The smoke fluid that I use in my trains as well as in a Heng Long RC Tank I have is propylene glycol. As far as I know it's harmless otherwise it wouldn't come with trainsets and things that are intended to be used by children. I also know that it is used in geothermal heating systems and is the liquid that is ran through the pipes.

Hello everybody,

I recently have been getting back into the hobby for the first time since i was a kid and was wondering if anyone knew the differences in code 83 and code 100 track? Also if I need to be concerned with whether or not my locomotives will fit/run on it?

Thanks for helping newbies such as myself
-Dtox